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Navajo Generating Station
Navajo Generating Station was a 2.25-gigawatt (2,250 MW), coal-fired power plant located on the Navajo Nation, near Page, Arizona, United States. This plant provided electrical power to customers in Arizona, Nevada, and California. It also provided the power for pumping Colorado River water for the Central Arizona Project, supplying about 1.5 million acre feet (1.85 km3) of water annually to central and southern Arizona. As of 2017 permission to operate as a conventional coal-fired plant was anticipated until 2017–2019, and to December 22, 2044, if extended. However, in 2017, the utility operators of the power station voted to close the facility when the lease expires in 2019. In March 2019, the Navajo Nation ended efforts to buy the plant and continue running it after the lease expires. On November 18, 2019, the plant ceased commercial generation. Full decommissioning of the site is projected to take approximately three years. On December 18, 2020, the three smokest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navajo Nation
The Navajo Nation ( nv, Naabeehó Bináhásdzo), also known as Navajoland, is a Native American reservation in the United States. It occupies portions of northeastern Arizona, northwestern New Mexico, and southeastern Utah; at roughly , the Navajo Nation is the largest land area held by a Native American tribe in the U.S., exceeding ten U.S. states. In 2010, the reservation was home to 173,667 out of 332,129 Navajo tribal members; the remaining 158,462 tribal members lived outside the reservation, in urban areas (26 percent), border towns (10 percent), and elsewhere in the U.S. (17 percent). The seat of government is located in Window Rock, Arizona. The United States gained ownership of this territory in 1848 after acquiring it in the Mexican-American War. The reservation was within New Mexico Territory and straddled what became the Arizona-New Mexico border in 1912, when the states were admitted to the union. Unlike many reservations, it has expanded several times since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Arizona Project
The Central Arizona Project (CAP) is a 336 mi (541 km) diversion canal in Arizona in the southern United States. The aqueduct diverts water from the Colorado River to the Bill Williams Wildlife Refuge south portion of Lake Havasu near Parker into central and southern Arizona. CAP is managed and operated by the Central Arizona Water Conservation District (CAWCD). It was shepherded through Congress by Carl Hayden. Description The CAP delivers Colorado River water, either directly or by exchange, into central and Southern Arizona. The project was envisioned to provide water to nearly one million acres (405,000 hectares) of irrigated agricultural land areas in Maricopa, Pinal, and Pima counties, as well as municipal water for several Arizona communities, including the metropolitan areas of Phoenix and Tucson. Authorization also was included for development of facilities to deliver water to Catron, Hidalgo, and Grant counties in New Mexico, but these facilities have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Powell
Lake Powell is an artificial reservoir on the Colorado River in Utah and Arizona, United States. It is a major vacation destination visited by approximately two million people every year. It is the second largest artificial reservoir by maximum water capacity in the United States behind Lake Mead, storing of water when full. However, Lake Mead has fallen below Lake Powell in size several times during the 21st century in terms of volume of water, depth and surface area. Lake Powell was created by the flooding of Glen Canyon by the Glen Canyon Dam, which also led to the 1972 creation of Glen Canyon National Recreation Area, a popular summer destination of public land managed by the National Park Service. The reservoir is named for John Wesley Powell, a civil war veteran who explored the river via three wooden boats in 1869. It primarily lies in parts of Garfield, Kane, and San Juan counties in southern Utah, with a small portion in Coconino County in northern Arizona. The northe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glen Canyon Dam
Glen Canyon Dam is a concrete arch-gravity dam on the Colorado River in northern Arizona, United States, near the town of Page, Arizona, Page. The high dam was built by the U.S. Bureau of Reclamation (USBR) from 1956 to 1966 and forms Lake Powell, one of the largest man-made reservoirs in the U.S. with a capacity of more than . The dam is named for Glen Canyon, a series of deep sandstone canyon, gorges now flooded by the reservoir; Lake Powell is named for John Wesley Powell, who in 1869 led the first expedition to traverse the Colorado River's Grand Canyon by boat. A dam in Glen Canyon was studied as early as 1924, but these plans were initially dropped in favor of the Hoover Dam (completed in 1936) which was located in the Black Canyon of the Colorado, Black Canyon. By the 1950s, due to rapid population growth in the seven U.S. and two Mexico, Mexican states comprising the Colorado River Basin, the Bureau of Reclamation deemed the construction of additional reservoirs necessar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navajo Generating Plant Under Construction – NARA – 549640
The Navajo (; British English: Navaho; nv, Diné or ') are a Native American people of the Southwestern United States. With more than 399,494 enrolled tribal members , the Navajo Nation is the largest federally recognized tribe in the United States; additionally, the Navajo Nation has the largest reservation in the country. The reservation straddles the Four Corners region and covers more than 27,325 square miles (70,000 square km) of land in Arizona, Utah, and New Mexico. The Navajo Reservation is slightly larger than the state of West Virginia. The Navajo language is spoken throughout the region, and most Navajos also speak English. The states with the largest Navajo populations are Arizona (140,263) and New Mexico (108,306). More than three-fourths of the enrolled Navajo population resides in these two states. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Power Transmission
Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation. The interconnected lines that facilitate this movement form a ''transmission network''. This is distinct from the local wiring between high-voltage substations and customers, which is typically referred to as electric power distribution. The combined transmission and distribution network is part of electricity delivery, known as the electrical grid. Efficient long-distance transmission of electric power requires high voltages. This reduces the losses produced by strong currents. Transmission lines use either alternating current (HVAC) or direct current (HVDC). The voltage level is changed with transformers. The voltage is stepped up for transmission, then reduced for local distribution. A wide area synchronous grid, known as an "interconnection" in North America, directly connects generators delivering AC power with the same rela ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Mesa And Lake Powell Railroad
The Black Mesa and Lake Powell Railroad was an electrified private railroad operating in Northern Arizona, USA within the Navajo Nation which transported coal from the Peabody Energy Kayenta Mine near Kayenta, Arizona to the Navajo Generating Station power plant at Page, Arizona. It was completely isolated from the national rail network and did not connect to any other railroad. As a result, like metros, light rails, and trams, it was not controlled by the Federal Railroad Administration. The line was constructed in the early 1970s and was the first railroad to be electrified at 50,000 volts. It was owned by the Salt River Project and the co-owners of the Navajo Generating Station. Operation The line was electrified by means of 50,000 V, 60 Hz, overhead catenary with electricity supplied by the Navajo Tribal Utility Authority. During normal operations, the railroad operated three round trips per day. Between 1973 and 1976, six E60CFs locomotives were purchased new. In 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kayenta Mine
The Kayenta mine was a surface coal mine operated by Peabody Western Coal Company (a subsidiary of Peabody Energy) on the Navajo Nation in northern Arizona from 1973 to 2019. About 400 acres were mined and reclaimed each year, providing about 8 million tons of coal annually to the Navajo Generating Station. History The Kayenta mine was located near the northern edge of Black Mesa, a 5,400 square mile highland plateau in northeast Arizona that contains extensive coal deposits in several geologic formations. Since about 1300 AD, the Hopi had extracted coal from the area for pottery firing and domestic heating. In the early 1900s, limited surveying of the coal field was made and a number of small underground mines were put into production, supplying local reservation schools and communities in the region. The coal field received increased attention beginning in 1950 when the Navajo-Hopi Long Range Rehabilitation Act was enacted in response to dire economic conditions on t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Station
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many power stations contain one or more generators, a rotating machine that converts mechanical power into three-phase electric power. The relative motion between a magnetic field and a conductor creates an electric current. The energy source harnessed to turn the generator varies widely. Most power stations in the world burn fossil fuels such as coal, oil, and natural gas to generate electricity. Low-carbon power sources include nuclear power, and an increasing use of renewables such as solar, wind, geothermal, and hydroelectric. History In early 1871 Belgian inventor Zénobe Gramme invented a generator powerful enough to produce power on a commercial scale for industry. In 1878, a hydroelectric power station was designed and built b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Park Service
The National Park Service (NPS) is an agency of the United States federal government within the U.S. Department of the Interior that manages all national parks, most national monuments, and other natural, historical, and recreational properties with various title designations. The U.S. Congress created the agency on August 25, 1916, through the National Park Service Organic Act. It is headquartered in Washington, D.C., within the main headquarters of the Department of the Interior. The NPS employs approximately 20,000 people in 423 individual units covering over 85 million acres in all 50 states, the District of Columbia, and US territories. As of 2019, they had more than 279,000 volunteers. The agency is charged with a dual role of preserving the ecological and historical integrity of the places entrusted to its management while also making them available and accessible for public use and enjoyment. History Yellowstone National Park was created as the first national par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grand Canyon
The Grand Canyon (, yuf-x-yav, Wi:kaʼi:la, , Southern Paiute language: Paxa’uipi, ) is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is long, up to wide and attains a depth of over a mile (). The canyon and adjacent rim are contained within Grand Canyon National Park, the Kaibab National Forest, Grand Canyon–Parashant National Monument, the Hualapai Indian Reservation, the Havasupai Indian Reservation and the Navajo Nation. President Theodore Roosevelt was a major proponent of the preservation of the Grand Canyon area and visited it on numerous occasions to hunt and enjoy the scenery. Nearly two billion years of Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado River
The Colorado River ( es, Río Colorado) is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and northern Mexico. The river drains an expansive, arid drainage basin, watershed that encompasses parts of seven U.S. states and two Mexican states. The name Colorado derives from the Spanish language for "colored reddish" due to its heavy silt load. Starting in the central Rocky Mountains of Colorado, it flows generally southwest across the Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona–Nevada border, where it turns south toward the Mexico–United States border, international border. After entering Mexico, the Colorado approaches the mostly dry Colorado River Delta at the tip of the Gulf of California between Baja California and Sonora. Known for its dramatic canyons, whitewater rapids, and eleven National parks of the United States, U.S. National Parks, the Colorado River and its tributaries are a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
